Trailer Brake Controller Wiring Colors

If you have never done wiring on a car before you might not want to attempt this install as your first wiring project.

Trailer brake controller wiring colors. This wire is called the 12 volt hot lead the second wire blue runs to the brake controller to supply power to the trailer brakes. The 5th pin a blue wire gives power to operate or disable the trailer brakes. The green is labeled stop lamp so that will go to the stop lamp circuit on your brake controller which in our case will be red. Then you have the two wires left the green and the brown.

Click for more info and reviews of this tekonsha trailer brake controller. Connect the ground wire to the white wire on controller will attach to the ground on the harness. The brake controller comes with a wiring harness that is the kind you have to splice into your vehicle s wiring. The wires exiting the rear of your controller serve the following functions.

So that would go to black the 12 volt power supply wire on the brake controller. For more information on wiring in a brake controller check out the help article i attached that covers this. Traditional trailer with brakes use a 5 pin connector. Splice the wires from the vehicle to the brake controller harness matching the colors as follows.

The traditional wire colors for brake controller installation are white for ground black for 12 volt power red for stoplight switch and blue for brake output. Blue vehicle wire to blue brake controller wire red 12 volt vehicle wire to black brake controller wire white vehicle wire to white brake controller wire. And then you have the extra wire here which is labeled illumination feed. Connect the brake controller harness to the electronic brake controller using barrel crimp connectors.

There will be four wires each separately labeled on the harness. The first wire black runs to the vehicle s battery to supply power to the trailer connector. The trailer brake control and additional plug in wiring harness. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above.

The colors of the remaining four wires. The blue wires carries the brake output from the controller the white wire is the ground the black wire supplies 12 volt power and the red wire is tied into the vehicle brake wiring.